I haven't unpacked pattern explorer yet - still sitting on my hard drive because I'm working on some other charting stuff at the moment. So I dunno.
AB is the main charting platform I use. It's equal to or better than Bullcharts, IMO, and far superior to free sites like Incrediblecharts. I bought both bullcharts and AB, but have stuck with AB because it has more funtionality, although it's much harder to learn. If you can put in a few hours and are prepared to learn some basic programming, it's great.
